Below is a primer on each of the four "Voice" coaches and what you might be able to expect in season 5. (But be warned: If there's anything we've learned from four seasons of "The Voice," it's that it foils expectation.)

Bragging rights: Critical raves for his playful takes on the classic Motown sound and his sense of drama, plus a sneaky sort of success. There's also, of course, the fur coat collection.

Coaching style: Somewhat Zen. In an interview with BET, he summed up his advice to his team members thusly: "Let go and let God. And do for yourself." His fellow coach Blake has commented on how "laid-back" he is. "He's kind of been the quiet killer in this thing," Blake said.

Mentors: Before his season 4 vacation from "The Voice," Cee-Lo enlisted R&B heavyweights like Monica, Babyface, Ne-Yo, Jennifer Hudson and Bill Withers as mentors. This season, he'll have a more new-fangled R&B artist helping out: Miguel.

Bragging rights: Her voice, and her decade-plus of No. 1 hits. She's been praised by the likes of Celine Dion as "probably the best vocalist in the world" and was the youngest person in Rolling Stone's ranking of the best 100 singers of all time.

Coaching style: In host Carson Daly's words: Constructive criticism. "Young people are like, 'Hey, I'm here. I'd like to leave with a little something.' I think Christina was good like that. She gave a lot of constructive criticism," Carson told the "Today" show.

"Voice" seasons won: None

Mentors: True to her eclectic musical influences, Christina's past roster of mentors has been a grab bag, ranging from Jewel to Lionel Richie to Green Day's punker-cum-Broadway-scribe Bille Joe Armstrong. This season, English songwriting prodigy Ed Sheeran will lend a hand.

Hails from: Ada, Okla., though he moved to country music mecca Nashville when he was 17 to start his career

Day job: Country superstar, and one-half of one of country's biggest power couples (his wife is singer Miranda Lambert)

Biggest hits: "Sure Be Cool If You Did," "Austin," "Who Are You When I'm Not Looking"

Bragging rights: A dozen No. 1 country singles and a slew of CMA, CMT and ACM awards — more than a dozen of them

Coaching style: None, he says. He prefers to take each artist individually and tailor his coaching accordingly. "I'm not a music teacher. I'm just a guy that has some advice for them and hopefully it's right and hopefully they listen," he has said.

"Voice" seasons won: Three — every season except the show's first. Team Blake's Jermaine Paul won season 2, Cassadee Pope season 3 and Danielle Bradbery season 4.

Mentors: Past mentors for Team Blake have included Lambert, Kelly Clarkson, Michael Buble and, most recently on season 4, Sheryl Crow. This season, it will be Cher, whose performance on the season 4 finale was her first live television performance in a decade.

"Voice" trademark: Folksy idioms he may or may not have made up himself.

—

ADAM LEVINE

Hails from: Los Angeles

Day job: Frontman for pop group Maroon 5 and occasional actor, with a stint on "American Horror Story"

Bragging rights: With Maroon 5, three Grammys won and more than 27 million albums sold worldwide. His undeliable rock star cred, from the tattoos to the parade of supermodel girlfriends (and now fiancee).

Coaching style: Being "as nurturing as possible" while trying to "educate" his team members to help them win.

"Voice" seasons won: One — Season 1, when his charge Javier Colon won.

Mentors: Team Adam's mentors run the gamut stylistically, from Alanis Morissette to a pre-"Blurred Lines" Robin Thicke to Mary J. Blige to, most recently, Hillary Scott of country trio Lady Antebellum. This season, Ryan Tedder of OneRepublic will help coach Adam's proteges.